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I have been following this guide from the gentto wiki to install Gentoo. I have hit a bit of a roadblock though which looks reasonably simple but I am having trouble figuring it out.

On this page: https://wiki.gentoo.org/wiki/Sakaki%27s_EFI_Install_Guide/Configuring_Secure_Boot#test_secure_boot

In the Testing Secure Boot with a Signed Kernel section whilst executing the buildkernel command I get the following error:

* Updating old config using make olddefconfig
make: *** No rule to make target 'olddefconfig'.  Stop.
* buildkernel: Error: Caught signal - exiting

I don't seem to have an olddefconfig at all and even if I did have one I am not entirely sure what rule should be added to the make file.

I have read the man page for the buildkernel command and gone over this description here but sadly I have still not managed to fix the issue.

Does anyone know how to rectify this error?

John
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1 Answers1

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So I now have an answer for this. It sometimes happens when the kernel sources have been updated to a new version, but the symbolic link /usr/src/linux hasn't been updated to match. Gentoo leaves a partially populated kernel source tree in /usr/src/linux--genoo even when an old kernel source version is unmerged, and if the symbolic link /usr/src/linux still points to this.

if you run:

eselect kernel list

and it produces something like:

Available kernel symlink targets:
  [1]   linux-4.14.63-gentoo-r1

and 

ls -l /usr/src/

produces something along the lines of:

total 8
lrwxrwxrwx  1 root root   20 Aug 18 00:33 linux -> linux-4.14.61-gentoo
drwxr-xr-x 23 root root 4096 Aug 18 02:38 linux-4.14.61-gentoo
drwxr-xr-x 25 root root 4096 Aug 18 02:33 linux-4.14.63-gentoo-r1

Running the following command will update the symbolic link and let you get on with things.

eselect kernel set 1

I emailed the author of the guide to get this information so credit goes to her. I am leaving this here in case anyone else runs into this problem in future.

John
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